The 210XLT is a great cabinet with a lot of low end for a 210, but I think you may be looking for a larger speaker if you want to be felt. Pairing your 210 with a classic 15" or even 18" speaker can have some booty shakin results. Audition your cab withs a variety of different speaker sizes, makes, and models -- see which one suits your sound the best. This is the best kind of trial, because finding one that matches up just right is kinda magical. See what you can get your hands on-

Many non-tube amps are rated for a minimum impedance of 4 ohms, and you can't run a lower impedance. If you have two 8 ohm cabinets connected to the same head you are effectively running a 4 ohm load, because that's how speaker impedance (ohms) works.

Running a 4 ohm cab and an 8 ohm cab together, for example, would create a 2.66ohm load and would likely damage an amp rated for a minimum of 4 ohms. Essentially, when in doubt, stick to 8 ohm cabinets because they will ultimately be the most compatible with different combinations of speakers and amps.

Before you do any of that get your hands on a Yamaha NE-1. It's the Nathan East box and can be found for very little money. A friend of mine has one and his bass sounds HUGE through a GK400rbIII and a little SWR workingman's 110 cab, no joke. I'm shocked every time I hear it.

Do you know that the Metro is only stable down to 4ohms? The company states that it is good down to 2ohms.

I am looking to bring out the 31.5 hz of the .130 b-string

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If you want punchy, "in your face" low end you don't want a heavy emphasis on the fundemental this low. You want to emphasize the second harmonic, which is 1 octave above the fundemental, or right about 62hz.

A strong low B fundemental is nearly impossible to acheive and still have punch.

If you want punchy, "in your face" low end you don't want a heavy emphasis on the fundemental this low. You want to emphasize the second harmonic, which is 1 octave above the fundemental, or right about 62hz.

A strong low B fundemental is nearly impossible to acheive and still have punch.

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You are saying that a cab that is rated about 40 hz should be fine to get a punchy low B string? Also, another person said to me that the cab can not be elevated from the floor. That it needs to be connected to get it to push out the bottom end. Do you agree?